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The traditional denoising algorithms may easily neglect image textures. To deal with this problem, this paper proposes an image denoising algorithm based on Adaptive Fractional integral (AFIID) for salt & pepper noise images. This algorithm uses the intensity of noise and the gradient of each pixel to calculate the gradient threshold of noise. It then finds the optimal fractional integral order...
In this paper, a new adaptive lifting wavelet transform scheme is proposed. The main idea of the scheme is that the choice of predicting operator is triggered by local gradient information of the signal. Such an adaptive scheme can adapt itself well to the analyzed signal, and both the smooth properties and the sharp transition characteristics of the signal can be reserved perfectly by using this...
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